Volvo B18 engine
| Volvo B18 engine | |
|---|---|
| Overview | |
| Manufacturer | Volvo | 
| Production | 
 | 
| Layout | |
| Configuration | Naturally aspirated Inline-4 | 
| Displacement | 
 | 
| Cylinder bore | 
 | 
| Piston stroke | 80 mm (3.15 in) | 
| Cylinder block material | Cast iron | 
| Cylinder head material | Cast iron | 
| Valvetrain | OHV | 
| Compression ratio | 8.5:1 – 10.5:1 | 
| Combustion | |
| Fuel system | |
| Management | Bosch D-Jetronic or K-Jetronic | 
| Fuel type | Gasoline | 
| Oil system | Wet sump | 
| Cooling system | Water cooled | 
| Output | |
| Power output | 40–225 bhp (29.8–167.8 kW) | 
| Chronology | |
| Predecessor | Volvo B4B engine | 
| Successor | Volvo Redblock Engine | 
The B18 is a 1.8 L inline four cylinder overhead valve automobile engine produced by Volvo from 1961 through 1968. A larger 2.0 L derivative called the B20 debuted in 1969.
Despite being a pushrod design, the engines can rev to 6,500 rpm. They are also reputed to be very durable. The world's highest mileage car, a 1966 Volvo P1800S, traveled more than 4,890,993 km (3,039,122 mi) on its original B18 engine.